/** Read the response from an outbound uping.
* @param[in] pptr UPing to check.
*/
void uping_read(struct UPing* pptr)
{
struct irc_sockaddr sin;
struct timeval tv;
unsigned int len;
unsigned int pingtime;
char* s;
char buf[BUFSIZE + 1];
IOResult ior;
assert(0 != pptr);
gettimeofday(&tv, NULL);
ior = os_recvfrom_nonb(pptr->fd, buf, BUFSIZE, &len, &sin);
if (IO_BLOCKED == ior)
return;
else if (IO_FAILURE == ior) {
const char* msg = strerror(errno);
if (!msg)
msg = "Unknown error";
sendcmdto_one(&me, CMD_NOTICE, pptr->client, "%C :UPING: receive error: "
"%s", pptr->client, msg);
uping_end(pptr);
return;
}
if (len < 19)
return; /* Broken packet */
++pptr->received;
buf[len] = 0;
pingtime = (tv.tv_sec - atol(&buf[1])) * 1000
+ (tv.tv_usec - atol(buf + strlen(buf) + 1)) / 1000;
pptr->ms_ave += pingtime;
if (!pptr->ms_min || pptr->ms_min > pingtime)
pptr->ms_min = pingtime;
if (pingtime > pptr->ms_max)
pptr->ms_max = pingtime;
timer_chg(&pptr->killer, TT_RELATIVE, UPINGTIMEOUT);
s = pptr->buf + strlen(pptr->buf);
sprintf(s, " %u", pingtime);
if (pptr->received == pptr->count)
uping_end(pptr);
return;
}
/** Make sure that a timeout event will happen by the given time.
* @param[in] when Latest time for timeout to run.
*/
static void
check_resolver_timeout(time_t when)
{
if (when > CurrentTime + AR_TTL)
when = CurrentTime + AR_TTL;
/* TODO after 2.10.12: Rewrite the timer API because there should be
* no need for clients to know this kind of implementation detail. */
if (when > t_expire(&res_timeout))
/* do nothing */;
else if (t_onqueue(&res_timeout) && !(res_timeout.t_header.gh_flags & GEN_MARKED))
timer_chg(&res_timeout, TT_ABSOLUTE, when);
else
timer_add(&res_timeout, timeout_resolver, NULL, TT_ABSOLUTE, when);
}
